Peanut is an important economic crop. When fertilizing, it should be dominated by organic fertilizer, supplemented by inorganic fertilizer, organic fertilizer and inorganic fertilizer combined with fertilization principle. Through balanced fertilization and topdressing, stable yield and high yield can be achieved.
Applying the base fertilizer The amount of base fertilizer accounts for 80%-90% of the total fertilization. Some peanut fields only need to apply the base fertilizer. Even if the fertilizer is applied less or not at the later stage, high yield can be obtained, which indicates the importance of the base fertilizer. Generally, 2000 kg of high-quality farm animal manure per mu, 120 to 20 kg of diammonium phosphate, 40 to 50 kg of superphosphate, 5 to 7.5 kg of potassium chloride, 4 to 5 kg of urea, and 0.5% of phosphate. The ratio of ~1% is mixed with organic fertilizer, which is beneficial to improve fertilizer efficiency. Some alkaline ground can be applied with 15~25kg of gypsum, molybdenum fertilizer can be used with 10~20g ammonium molybdate or 0.1%~0.2% solution, soaked for 3~5 hours, can be sown after drying, gypsum or lime can be combined with cultivated land When the time is applied as a base fertilizer.
The skill of applying topdressing is to lightly catch the seedling fertilizer. The peanut seedling fertilizer can promote early growth, strong seedlings and branches, increase the number of flowers and fruits, increase the yield, and require less fertilizer in the seedling stage, but the base fertilizer is insufficient or the base fertilizer is not applied. Appropriate use of quick-acting nitrogen fertilizer should be applied to promote seedling growth and flower bud differentiation. It can be used directly for 3 to 4 kg of urea per acre before use, or 250 to 300 kg of decomposed human and animal manure, and added with phosphorus and potassium fertilizer. The second is to apply flower needle fertilizer. The needle period requires more fertilizer, and the effect is to promote more flowering, more species, and more results. Generally, 4-5 kg ​​of urea is applied per mu, 6-7 kg of diammonium phosphate, 5-6 kg of potassium sulfate, or 50-75 kg of ash. If the needle-podding period is weak, it is also possible to add 100-250 g of urea in combination with spraying. The third is to apply the pod fertilizer. The pod-forming period is the period in which the most fertilizer is needed, and it is also the key period for promoting the accumulation of dry matter and the development of fruit needles and pods. Grab the application of 4 to 5 kg of diammonium phosphate and 6 to 8 kg of superphosphate per acre before the closure of the line. For the application of boron and zinc fertilizer, it can be sprayed 2 to 3 times when applying the pod fertilizer. % to 0.2% zinc sulfate or borax aqueous solution. In the late growth stage, peanuts are not suitable for topdressing because the plants have been sealed. However, for those with de-fertilization, the urea solution with a concentration of 1% to 2% can be sprayed with fertilizer to improve the seed setting rate and fruit growth.
Increased calcium fertilization Calcium promotes pod formation, reduces pods and increases the number of fruit. When lime is used as top dressing, it can be combined with cultivating soil in the early flowering stage and applied shallowly in the pod-growing area of ​​peanuts. Generally, 5-8 kg is applied per mu, or 7.5-10 kg of calcium sulfate is applied per mu.
Topdressing Fertilizers Artificial inoculation of peanut rhizobium can promote early peanut and multi-root nodule and improve the nitrogen fixation capacity of plants. At present, the peanut rhizobium agent (rhizobial fertilizer) is generally used in the production of 25 grams per acre. When using it, add appropriate amount of water to make a paste and mix well with seeds. Pay attention to mixing with seeds to prevent sun exposure. Mix or contact with fungicides.
Applying the base fertilizer The amount of base fertilizer accounts for 80%-90% of the total fertilization. Some peanut fields only need to apply the base fertilizer. Even if the fertilizer is applied less or not at the later stage, high yield can be obtained, which indicates the importance of the base fertilizer. Generally, 2000 kg of high-quality farm animal manure per mu, 120 to 20 kg of diammonium phosphate, 40 to 50 kg of superphosphate, 5 to 7.5 kg of potassium chloride, 4 to 5 kg of urea, and 0.5% of phosphate. The ratio of ~1% is mixed with organic fertilizer, which is beneficial to improve fertilizer efficiency. Some alkaline ground can be applied with 15~25kg of gypsum, molybdenum fertilizer can be used with 10~20g ammonium molybdate or 0.1%~0.2% solution, soaked for 3~5 hours, can be sown after drying, gypsum or lime can be combined with cultivated land When the time is applied as a base fertilizer.
The skill of applying topdressing is to lightly catch the seedling fertilizer. The peanut seedling fertilizer can promote early growth, strong seedlings and branches, increase the number of flowers and fruits, increase the yield, and require less fertilizer in the seedling stage, but the base fertilizer is insufficient or the base fertilizer is not applied. Appropriate use of quick-acting nitrogen fertilizer should be applied to promote seedling growth and flower bud differentiation. It can be used directly for 3 to 4 kg of urea per acre before use, or 250 to 300 kg of decomposed human and animal manure, and added with phosphorus and potassium fertilizer. The second is to apply flower needle fertilizer. The needle period requires more fertilizer, and the effect is to promote more flowering, more species, and more results. Generally, 4-5 kg ​​of urea is applied per mu, 6-7 kg of diammonium phosphate, 5-6 kg of potassium sulfate, or 50-75 kg of ash. If the needle-podding period is weak, it is also possible to add 100-250 g of urea in combination with spraying. The third is to apply the pod fertilizer. The pod-forming period is the period in which the most fertilizer is needed, and it is also the key period for promoting the accumulation of dry matter and the development of fruit needles and pods. Grab the application of 4 to 5 kg of diammonium phosphate and 6 to 8 kg of superphosphate per acre before the closure of the line. For the application of boron and zinc fertilizer, it can be sprayed 2 to 3 times when applying the pod fertilizer. % to 0.2% zinc sulfate or borax aqueous solution. In the late growth stage, peanuts are not suitable for topdressing because the plants have been sealed. However, for those with de-fertilization, the urea solution with a concentration of 1% to 2% can be sprayed with fertilizer to improve the seed setting rate and fruit growth.
Increased calcium fertilization Calcium promotes pod formation, reduces pods and increases the number of fruit. When lime is used as top dressing, it can be combined with cultivating soil in the early flowering stage and applied shallowly in the pod-growing area of ​​peanuts. Generally, 5-8 kg is applied per mu, or 7.5-10 kg of calcium sulfate is applied per mu.
Topdressing Fertilizers Artificial inoculation of peanut rhizobium can promote early peanut and multi-root nodule and improve the nitrogen fixation capacity of plants. At present, the peanut rhizobium agent (rhizobial fertilizer) is generally used in the production of 25 grams per acre. When using it, add appropriate amount of water to make a paste and mix well with seeds. Pay attention to mixing with seeds to prevent sun exposure. Mix or contact with fungicides.
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